Hydraulic motor for portable grain-dumps.



J. B- CAMP."

HYDRAULIC MOTOR FOR PORTABLE GRAIN DUMPS.

APPLICATION FILED SEPT.25,1905.

QWJZD Patented Jan.'l2, 1909.

2 SHEETS -SHEBT l.

- J. E. CAMP.

HYDRAULIC MOTOR FOR PORTABLE GRAIN DUMPS.

APPLICATION FILED SEPT. 25, 1905.

909,27 Patented Jan. 12, 1909.

2 SHEETS-SHEET 2.

a. 2. 2w. Jow i'i 7 UNITED STATES PATENT OFFICE.

JOSEPH EDWARD CAMP, OF WASHINGTON, ILLINOIS, ASSIGNOR TO CAMP BROS. & CO., OF

METAMORA, ILLINOIS, A CORPORATION OF ILLINOIS.

HYDRAULIC MOTOR FOR PORTABLE GRAIN-DUMPS.

Specification of Letters Patent.

' Patented Jan. 12, 1909.

Application fi led September 26, 1906. Serial No. 279,977.

To all whom it may concern: I

Be it known that. I, JosEPH E. CAMP, citizen of the United States, residing at Washington, in the county of Tazewell and. State of Illinois, have invented-certain new in the art to which it appertains to makeand use the same.

My present invention pertains to portable grain dumps, or Wagon dumps of that class wherein a movable platform is employed upon which to drive a loaded wagon whose contents are to be delivered into a conveyor and elevator for storing or other purposes.

The object of the present invention is to provide an extremely simple device of low cost for tilting the wagon to a dumping position.

A further object is to provide a hydraulic mechanism for thus tilting the wagon.

A further object is to provide a hydraulic mechanism for raising the wagon slowly and permitting said wagon to lower quickly after deliverance of the load therefrom.

In the a pended drawings forming part of this app ication, Figure 1 is a top view of my portable grain dump. Fig. 2 is a side elevation of the same. Fig. 3 is a perspective view of the hydraulic mechanism employed in the dump. Fig. 4 is a'slightly modified form of the invention.

I provide a. platform A for receiving the I wagon and carrying the dumping mechanism, mounting it upon wheels B to make it portable though of course other methods of transportation can be employed instead.

In use the wheels are let into holes dug in the ground 'when the dump has been prop-' 'erly positioned for work so that the latform will rest upon the top of the groun and have a firm foundation.

At the rear end of the platform is located a conveyer or drag O pivoted at one end so as to tip and raise out of the way to allow the wagon to pass. This pivotal support and connection, however, is not shown herein since it is well known and furthermore forms no part of my invention. I have also indicated an elevator D commonly used on devices of this class into which the conveyor is designed to deliver its contents. But

none of its parts or supporting means are shown except the driving connection between it and the wagon raising mechanism to be described.

Near the forward end of the platform and at the middle of the width thereof is stationed a hydraulic cylinder E. This .occupies a substantially vertical position and is supported on trunnions F carried in bearings G secured to the under side of the )latform, see" Fig. 2. A piston and piston r0 H and J respectively are provided for the cylinder and have a substantially vertical movement, the

up er end of the said piston rod carrying a sa dle K designed to receive the front axle of the wagon, said saddle normally occupying the lowest position shown in Fig. 2 so that the axle can pass over it. Near the top of the cylinder is a reservoir L for containing oil or water, the former being preferable, and at M is a pumping cylinder pivoted at one end between ears N secured to the under side of the platform but shown detached in Fig. 3. A pipe 0 connects the bottom of the reservoir with the said pumping cylinder and is provided with a check-valve P for permitting flow of the fluid to the said cylinder but not in the opposite direction. The cylinder M is also connected with the bottom of the cylinder E by a ipe Q which is likewise provided with a c leek-valve R for allowin r the fluid to pass toward the said cylinder It but prevent passage thereof in the contrary direction. The bottom of the cylinder E is connected by a pipe S with the top of the reservoir L. Journaled at the side of the platform is a shaft T carryin an eccentric U, the latter being surrounded by an eccentricstrap V at the end of a piston-rod W having a piston X within a pump M. The shaft T is connected by means of a tumbling-rod 2 with the shaft 3 of the elevator D as shown by which power applied to the elevator gearing is transferred to the said shaft T and its eccentric to operate the piston within the pump M as will be understood by a study of it the rear end of the platform two uprights are stationed as at 4 these being about the same height as the saddle K of the cylinder E. A rod 5 is pivoted at each side of the said saddle and each extends back to the top of the uprights 4 to which they are also pivoted. It will be noted that the rods 5 are substantially equal length to, the distance continual motion, in my present arrangement, I provide means for rellevm the pressure within it by connectlng the pipe 0 with same are of movement as the front axlederaised as the saddle K meets the front axle .remains at t 1e height at which it is sto ped loss of any oil that remains within the pump between the axles of the wagon so that as their forward ends-rise with the saddle they cause the latter to-describe practically the scribes as the wagon tilts on its rear axle.

In operation the elevator imparts a continuous motion to the eccentric U throu h I the tumbling-rod and shaft T the pump being therefore in continuous operat1on, though as a matter of fact means could be provlded for disconnecting the elevator and shaft T if desired. With the ump in operation-the fluid to be handled is rawn from the receptacle or tank L and forced into the bottom of the cylinder'E, the pressure slowly raising the iston J. The wagon bein positioned as s LOWH in Fig. 2 will hkew1se be thereof. When at the desired height a cutoff valve 6 in the pipe 0 is turned, by means of a rod 7 and lever 8 to interrupt'the flow of fluid to the umping cylinder. The wagon provided that a valve 9 in the pipe S is c osed to the passage'of fluid therethrough from the cylinder E to the tank L said valve being operated by a rod 10 and lever 11 similar to and ositioned the same as the rod 7 and lever 8 ust described. If, however, the valve 9 is opened the'fluid in the cylinder E 1s forced through the pipe S to discharge into the tank L by the weight of the wagon resting thereon through the piston and dently the wagon may be owered as slow or fast as desired by the simple adjustment of the said valve 9. Since the pump M- is in the tank L by means of a pi e O, the connection with said pipe 0 being etween the valve 6 and the pum M, there being a valve 0 in said pipe 0 t e stem of which carries a toothedsegment O to mesh with a similar member 0. on the valve rod 7 of the valve 6. It will be noted that whenthe said valve 6 is closed to interrupt the flow of fluid to the I pump M the valve 0 will be simultaneously opened to allow the pump to relieve itself by having a free passage to and from the tank. Evidently when the valve 6 is again opened l the valve 0 will be immediately closed no attention bein I paid to it. As a matter of fact the pipe need not terminate within the tank L since it does not and need not necessarily carry oil back and forth there-' through but merely provides relief for the pump and therefore can be merely extended upward into the air high enough to prevent at the time the supply of oil thereto is sto ped.

he valve 9 in the pipe S is always closed when the wagon is being raised in order to put the fluid under pressure inthe cylinder the level of the fluid varies.

istonrod. Evi- E, it being opened only when the wagon is to be lowered. In the'top of the tank is an opening 12' for entrance and escape of air as tank is preferably closed so as to prevent spilling the fluid during the transportation of the dump.

The cylinder E is provided with the trunnions F so that it can pivot thereon and in this way there can be no binding of the piston or plston-rod therein. It .is quite evident, however, that the pivotal movement ofthe piston will be very slight since the are which itssaddle K described is practically a straight line as lying parallel to the axis of the cylmder dottedline Y in big. 2 indicates.

There is allowed sufficient spring in the pipes at any time then reverses the positions thereof permitting the wagon to arise to the desired height where the raising movement can be arrested at any time or place.

When placing the wagon dump in osition at a destination, a hole is made for eac wheel The top of the and one also for the lower end of the cylinder,. E in order that the platform may rest com-' struction and may be placed onany wagon dump already built since it is constructed in one ent1re portable member the parts all being connected together except as to the valve rods 10 and 7 and the pistons J and W. I do not wish to confine myself to the exact construction and arrangement herein shown since it may be changed in various ways to ac uire the same results. As an instance of sue a change I show in Fig. 4 a cylinder E and oil reservoir L or tank and one of the pivot members F, which correspond to Fin the other figures, with a therewith. The ipes Q, S and 0" corresponding wit the pipes O, Q, S and 0 respectively of the other figures and connected in substantially the same manner to the pumpand cylinder E, with the check-valves and cut-off valves as before-there being gear wheels 0 on the stems of the valve-rods Sump M centralized 1 negation between and connecting the conof the normally closed valve permitting the team in and 3' are chews and correspond with 11 end 8 of the revio'u's figures as will be understood. In t is case I have pivotally connected the eccentric rod U with the piston-rod U of the pump without pivot-ing said pump 'as before. Th1s makes a more com act and possibly preferable construction, t e cyliner and map being cast in one member if desired t ture.

1. A portable hydraulic lift comprising-a cylinder and its iston, a fluid container, and. l 'a'p'ur'np adapte -for continuous operation, both portable with the cylinder, a fluid conus reducing the poet of manufactainer with the lower end of the cylinder, a normally closed cut-oil valve therein, a' fluid connection between and connecting the lower end of the cylinder and the pump, a check valve in the same adapted to permit flow of fluid towards the cylinder, a fluid connection between and connecting the fluid container with the ump, a cut-off valve therein, a second fluid connection between and connecting the fluid container and the pum a check valve therein for permittin the ow of fluid towards the pump, a cut-o valve also in said second fluid connection, and means for o crating the pump to introduce fluid into .t e cylinder to raise the piston, the said cut-ofi valves adapted for simultanedusly interrupting the flow of fluid to the cylinder and opening a relief from the pump to the container whereby to interrupt the raising movement of the piston.

2. A portable hydraulic lift comprising a cylinder and its piston, afluid container, and a pump adapte for continuous o era'tign, b'oth portable with the cylinder, a uid connection between and connecting the container with the lower end of the cylinder, a normally closed cut-ofl valve therein, a fluid connection between and connecting the lower end of the cylinder and the pump, a check valve in the same adapted to permit flow of fluid towards the cylinder, a fluid connection between and connecting the fluid container with the ump, a "cut-oil valve therein, a second fluid connection between and connecting the fluid container and the pum a check valve therein for permitting the ow of fluid towards the pump, a cut-off valve also in said second fluid connection, and means for operating the pump to introduce fluid into the cylinder to raise the piston, the said cut-off valves ada ted for simultaneously interrupting the ow of fluid to the cylinder and opening a relief from the pump to the container whereby to interrupt the raising movementof the piston, the opening piston to lower by permitting the return of fluid from beneath it back to the container.

3-. A cylinder, a piston therefor, a container for fluid to be pumped into the cylinder for raising the piston, a pump, a pipe connecting the pump with the flnid 'c'ontainer, a manually operated valve therein, a second pipe connectmg the pump with the container, a check valve and a manually operated valve therein, the latter when closed automatically opening the first said man'- u'ally operated valve for the purposes ex-' plained, a.pi e connectiri the pump with the cylinder, a c eck valve 't mom, a pipe conheating the cylinder with the fluid container, and a manually operated cut-oil valve therein normally closed at the time fluid is d into the cylinder or when the piston is raised and at rest, and opened to permit the elevated piston to lower.

4. A cylinder, a piston therefor, a container for fluid to be pumped into the cylinder to raise the piston, a'continuously oper'- ated pump, a pipe for connecting the pump with the fluid container, a cut-oil valve therein, a second pipe connecting the pump with the container, -a cut-oil valve and a check valve therein, means for automatically oplenin the cut-off valve in the first pipe w on that in the second pipe is in the act of closing for the purposes explained, a pipe connecting the pump with the cylinder, a check valve therein, a pipe connecting the cylinder with the fluid container, and a cutoff valve therein normally closed when pumping fluid into the cylinder or when the piston is raised and at rest, and opened to permit the elevated iston to lower.

5. A cylin er and piston, pressure means, a fluid container from which fluid is entered into the cylinder, a fluid supply pipe connecting the container with the said pressure means for passage of fluid to the latter but not in the other direction, a pipe for relieving pressure back to the container for the purposes explained, a manuall operated valve in each (pipe, the closing 0 one simultaneously an automatically opening the other, a pipe ccnnection between the pump and cylinder, a check valve therein, a pipe connecting the cylinder and fluid container, and a cut-off valve therein all for the purposes described.

6; A cylinder and iston, a pump, a fluid container from which fluid is pumped into the c lindcr, a fluid sup ly pipe for connectin? t e container with t re pump, means for re ieving pump pressure for the purposes explained, a manually operated valve in the pipe, a valve in said means and simultaneously and automatically opened as the first valve is closed, a pipe connection between the pump and cylinder, a check valve therein, a pipe connecting the cylinder and fluid the cylinder, a fluid sup ly pipe for connect ing the container with t e pump for passa e of fluid to the pump, but not in the other 1- rection, a cut-off valve and a check valve therein, a relief pipe connected to the last named ipe between the cut-off valve thereof and t e ump, and the cut-off valve in the fluid su p p1 e being closed to sto the flow of ui to the pump, the valve in t re relief pipe being opened to relieve the pump pressure to the container, a pipe connecting the pump with the cylinder, a check valve therein, a pipe connecting the cylinder with the fluid container, and a valve therein all for the purposes explained.

8. A cy inder and its piston, pressure means for entering a fluid to the cylinder to raise the piston, coacting manuallyoperated means for simultaneously interru tmg the flow of fluid passing toward the cy mder and for relieving the ressure present in said ressure means, and other means by whic to hold the fluid within the cylinder to sustain the piston in its raised position.

9. In a liftin device the combination of a support, a fluid receiving cylinder mounted thereon, a piston and its piston-rod for the cylinder, a source of fluld supply carried t erewith, fluid umping means or entering fluid to such cy inder to move the iston, rod members attached at one end to t e piston-rod and at their other ends to the support for bracing and guiding the piston-rod, means for arresting the upward movement of the piston, and other, means for permitting discharge of the fluid-from the cylinder to the fluid source to allow the piston to lower.

10. A fluid receivin cylinder mounted to tilt on a substantially horizontal axis, a piston and its piston-rod therefor, fluid pumping means for entering fluid to the c linder to operate the piston, means attacher to the piston-rod to brace and guide it, means for arrestin the movement of the piston due to the flui pressure therea ainst, and other means for permitting disc arge of the fluid from the cylinder to allow'the piston to seek its normal position or position of rest.

11. A cylinder, a piston therefor, a con tinuously operated pump for entering fluid beneath the piston, a rece tacle for the fluid passing to and from the cy inder, avalve for interrupting the flow of fluid from the receptacle to the said cylinder, and a valve simultaneously operated by the first for relieving the pressure at the um and a valve for holding the fluid witfiin t e cylinder to sustain the piston in a fixed raised position and also to ermit the fluid to flow out 'of the cylinder w enit is desired to permit the piston to lower.

12. A cylinder mounted to pivot on a horizontal axis, a piston therefor, a pump situated opposite t e pivot of the cylinder or entering a fluid to the latter for raising the pisin said pipes for permitting flow of fluid in but one direction and through which fluid is drawn from the reservoir and entered into the cylinder by the pump, a pipe for the return of the fluid from the cylinder to the reservoir, and a valve in said pipe.

13. A vertical cylinder adapted to oscillate, a piston for the cylinder, a member connected to the piston-rod and supported at its other end for guiding and tilting the cylinder and piston for the purposes set forth, a continuously acting pump for entering fluid to the cylinder for raising the piston, means for simultaneously interrupting the flow of fluid from the pump to the cylinder and relieving the pump pressure caused by such interruption, and means for holding the pum ed fluid within the cylinder and then li erating it. 4

14. A cylinder and its piston, a device for pumping the fluid thereinto, a pipe connected etween the pump and the cylinder, a check valve in said pipe, a fluid supply tank, a pipe connecting the same with the pump, a check valve in the pipe, a relief pipe connecting the last named pipe with the said supply tank, a cut-off valve in both the last named pipes,

and means for operating both of them posi-' tively and simultaneously.

15. A cylinder and its piston, a continuously operating pum a pipe connecting the pump and the cylin er, a check valve in the pipe, a fluid vessel, a pipe connecting the same with the pump, a check valve and a cut-off valve in said pi e, a relief pipe connecting the last name pipe with the fluid vessel between the pump and the said cut-ofl and checkvalve, and a cut-off valve in the relief pipe, and means connecting both cut-off valves by which they are simultaneously and positively o erated.

16. A cy inder and its piston, a continuously acting pump, a pipe connectin the pump with the cylinder, a check valve t erem, a fluid vessel, a pi e connecting it with the pump, a cut-off va ve and a check valve in said pipe, a relief pipe connecting said vessel with the last named pipe at a point between the pum and the cut-off and check valves, a cut-o valve in the relief pipe, and means connecting one cut-off valve with the other for operating one of the valves automatically when the other is operated.

17. A cylinder and its piston, a continuously acting pump, a pipe connectin the ump with the cylinder, a check valve t erepipe, means by which the cut-off valves are operated simultaneously, 8. pi e directly connecting the cylinder with the uid vessel, and a cut-off valve therein. a

18. A cylinder and its piston, a continup ously acting pump having fluid connection with the bottom of the cylinder, a check valve between the pump and the cylinder, a fluid vessel having connection with the pump, a check valve between the pump and vessel, a relief pi e for relieving the pump pressure, a cut-o valve in the latter pipe, and a cut-off valve in the pump and vessel connection, a discharge pipe connected from the cylinder into the fluid vessel, and a valve in said pipe for closing the same and for governing the amount of fluid passing therethrough.

19. A portable pivotallymounted cylinder and its piston, a continuously acting pump having a fluid connection with one end of the cylinder to operate the piston by ressure, a check valve in such connection, a fluid vessel also ortable, a pi e connecting the vessel and t e pump, a c eck-valve therein, there being a relief passage between the check valve and said pump back to said vessel, a cut-off valve in the pipe also between the check valve and the ump and lyin between the said check va ve and the relief passage, a cut-ofl valve in said relief passage, and a valve controlled pipe connected between the cylinder and vessel.

20. A portable oscillating cylinder and its piston, a continuously acting pump having uid connection with one end 0 the cylinder, a check valve in such connection, a fluid vessel also portable, a pipe connecting the vessel and the pump, a check-valve therein, a ressure relief for the pipe between the c eck valve and said pum ,a single cut-ofl valve in the pipe between t e check valve and the pump and between said check valve and the pressure relief, means by which the opening of one valve closes the other simultaneously, a ipe connecting the fluid vessel with the cy inder at the same end with which the ump is connected, and a controlling valve 1n said pipe.

21. A cylinder adapted to oscillate upon a horizontal axis, a piston therefor, a pump opposite said axis, a source of fluid supply for the pump, a fluid connection between the pump and the cylinder, a fluid connection,

etween the pump and the fluid source, and a fluid connection between the fluid source and the cylinder for the purposes set forth, said pump and' its connections oscillating with said cylinder.

22. A cylinder mounted upon a horizontal axis and ada ted to oscillate thereon, a pump posite sai axis and having its piston axlo ally in line with the axis on which the cylinder oscillates, a fluid container, a ipe connection between the container and t e pump, a pipe connection between the pump and the cylinder, and a ipe connection between the container and the cylinder for the pur oses setforth, all adapted to move with sai cylinder in its oscillating movements.

23. .A cylinder mounted to oscillate on a transverse axis, a pump 0 posite said axis and in a line therewith, a fluid container, a pipe connection between the container and the pump, a pipe connecting the pum and the cylinder, a pipe connectlng the cy inder and t e container for the purposes described, the pum the pipe connections and the container al being bodily carried on said cylinder and movable therewith as it oscillates for the purposes set forth.

In testimony whereof I aflix my signature, in presence of two witnesses.

JOSEPH EDWARD CAMP.

Witnesses:

B. F. NAFZIGER, ANDREW SPRINGER. 

